SU591902A1 - Remote instruction receiver - Google Patents

Description

I

The invention relates to time-division telemechanic devices providing reception of control commands for two-position objects.

Devices for receiving telecontrol commands are known, which contain an Address Decoder on AND elements and a trigger, registers, distributors, and a P.J.

In known devices, an increase in the reliability of receiving commands is achieved due to the complexity of the apparatus. ;

The closest in technical essence to the invention is a device for receiving remote control commands, comprising a command receiving unit, the output of which is connected to the first inputs of the command memory and command comparison unit, an output relay unit, the output of which and the command comparison unit output are respectively connected to the first and the second inputs of the actuator switching resolution unit 2. This device is not protected from distortion command in the transmitter. .

The purpose of the invention is to increase the reliability of receiving telecommand commands.

This goal is achieved by the fact that the 1TO JB device is introduced.

A coil, a parallel code conversion unit into a serial control unit, and an analysis unit performed on the diodes. The diodes anodes, besides the latter, are connected to the first output of the control unit, the cathodes of the diodes are connected to the corresponding opening contacts of the output relays connected in series, the anode of the last diode of the analysis unit is connected to the second output of the control unit. The first input of the control unit and the first input of the distributor are connected to the output of the command receiving unit. Distributor Outlet | connected to the second inputs of the instruction comparison unit, the control unit and the instruction memory unit and to the first input of the parallel-to-code conversion unit,

The second input block conversion

Connections to the corresponding contacts are given to the input relays, and output is to the TepefiMe input to the command comparison block. The fourth and fourth

Claims (2)

the outputs of the control unit are connected, respectively, with the third inputs of the instruction memory and the actuator switching resolution unit. Due to this / construction of the device, a total failure is provided if the command in the receiver, the communication line and the transmitter is distorted. The drawing shows a block diagram of the proposed device. The device for receiving telecontrol commands contains the command receiving unit 1, the distributor 2, the control unit 3, the command memory block 4, the output relay block 5, the analysis block b on the output relay contacts 7ts and on the diodes 8 - 8fi4- | , block 9 converting a parallel code into a serial block 10 of comparing commands, block 11 times resolving the switching of executive elements -. The device works as follows. Sequential: the command code and the clock pulses from the communication line arrive at block 1, which divides the incoming signals to its signals. Synchronizing pulses acting on the distributor 2, forced him to work synchronously with the transmitter distributor. The applied code contains the command for setting the device operation mode, which is sent to the control unit h 3, and the position code of the address of the object, the control to which the command is sent. To increase the accuracy of the command reception, simultaneous transfer is available, giving a command to only one object, v.3 4 in the code commands can contain the address of only one object. The command code goes to block 4 of the command memory. To control the elements of block 4, the signals from the distributor 2 and the serial code from block 1 are used. In control unit 3, a counter is stored that records the number of cycles for receiving the command code. The recording of information received by block 1 into block 4 is resolved when the counter of control unit 3 is set to the first position, i.e. when the signal H is formed at the first output of block 3. Block 5 of the output relays receives information from block 4. In the next two cycles, when the signal forms with the second and third outputs of block 3, respectively, the reception of the code by block 4 is prohibited and it code received in the first loop. When signal 1 is applied to the diode 8p, only one signal is generated at the outputs of the analysis block b, regardless of the number of switching contacts, i.e. the number of triggered output relays. When a signal is applied to the diodes & cn, the number of signals H at the outputs of the comparison block b is equal to the number of the output relays activated. The outputs of the comparison unit b and the distributor 2 are connected to the inputs of the conversion unit 9, parallel to the serial code. Due to the fact that blocks 4 and 9 are synchronized by signals from common distributor 2, in the absence of command distortions, the sequential codes at the outputs of block 1 and block 9 should coincide completely. Since the command code contains only one signal, the code at the output of block 9 does not change when feeding signals to the inputs of block 6 from the second and TipeTbefO outputs of the control unit 3. When the codes at the outputs of blocks 1 and 9 coincide in cycles, when signals are generated at the second and third outputs of the control unit 3, block 10 outputs a signal to block 11 and eschedaschy switching actuators. The device detects distortions in the command code caused by interference in the communication line, as well as operator errors or equipment and receiver faults. Code Distortions by Random Interferences In a communication line, it is detected by checking the matching of codes in three adjacent cycles. When transmitting a malformed command, i.e. if there is more than one signal in the code. In a cycle, when from the control unit 3 a signal is applied to the diode Qn at the outputs of block b, despite the operation of more than one output relay, only one signal is generated. This leads to a mismatch of CODES / arrivals to block 10 from the outputs of blocks 1 and 9, and blocking the switching of executive ee: dementors by block 11. IF the command code is transmitted correctly, but due to a fault in the receiving device two or more output relays operate, in a cycle When the signal i is supplied from the control unit 3 to the diodes 8-8 f, a code with several signals is formed at the output of the block b. In this cycle, the mismatch of the codes entering block 10 from blocks 1 and 9 is fixed and the execution of the received command is blocked. If in the command receiving device group selection of the control object is used, blocks similar to block b are formed from the switching contacts of the group relays and relays of objects of each group, and the inputs of all these blocks are connected to the outputs of the control block 3 in parallel, and the same number of outputs of all blocks analysis, formed by the output relays of objects of each group, are combined and connected to the corresponding inputs of block 9. The device construction provides complete control of the absence of distortions in the received command and e hardware requires complication transmitter nodes detecting transmitter. Apparatus for receiving remote control commands, comprising: a receiving unit A command whose output is connected to the first inputs of the command memory and the command comparison unit, the output relay unit, the output of which and the output of the command comparison unit are connected respectively to the first and second inputs of the executive switching commutator unit, characterized in that receiving telecontrol commands, a distributor, a parallel code-to-serial code conversion unit, a control unit and i & LOC analysis performed on the diodes, the anodes of which, except the last, are entered to the first output of the control unit, the cathodes, diodes are connected to the corresponding opening contacts of the output relays connected in series, the anode of the last diode of the analysis unit is connected to the second output of the control unit / first input the control unit and the first input of the distributor are connected to the output of the command receiving unit, the output of the distributor is connected to the second inputs of the command comparison unit, the control unit and the command memory block and to the first input of the parallel code-to-serial code conversion unit, the second inputs of which are connected to the corresponding terminals the output relay contacts, the output to the third input of the comparison unit, the third and fourth outputs of the control unit are connected respectively to the third inputs of the command memory and the block are allowed and switching actuators. Sources of information taken into account in the examination 1: USSR Copyright Certificate No. 458852, G08 C19 / 28, 01/25/73. 2. USSR author's certificate: 243014, G08 C 19/00, 28.02.68.